Encapsulation of sensitive liquid components into a matrix to obtain discrete shelf-stable particles
CA 2345815 C · Owner: Van Lengerich, Bernhard H. · Inventors: Van Lengerich, Bernhard H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid encapsulant component which contains an active sensitive , encapsulant, such as a live microorganism or an enzyme dissolved or dispersed in a liquid plasticizer is admixed wiTh a plasticizable matrix material. The matrix material is plasticizable by The liquid plasticizer and The encapsulation of The active encapsulant is accomplished at a low temperature and under low shear conditions. The active component is encapsulated and/or embedded in The plasticizable matrix component or material in a continuous process to produce discrete solid , particles. The liquid content of The liquid encapsulant component provides substantially all or completely all of The liquid plasticizer …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 6, 1999 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.